Grease cup



Jn. is, 1924. f 1,480,844

V.v VAN NATTAN ET AL GREASE; CUP

Filed NOV. 2l 1922 Patented `lan. l5, i924.

migra VERLE V. VAIQ NATTAN AND WILLIAM W. DAVIS, OF SAN FRANCISCO, CALIFORNIA; SAID VAN NATTAN ASSIGNOR T0 SAID DAVIS.

GREASE CUP.

Appneation mea november 21, 1922. serial No. 602,352.

To all 'whom t may concern:

Be it known that we, VERLE V. VAN NAT- TAN and 1WiLLIAiiI W. DAvs, citizens of the United States, residing at the city and county of San Francisco and State of California, have invented new and useful Improvements in a Grease Cup, of which the following is a speciiication.

This invention relates to a grease cup, and especially to a cover structure therefor.

The object ofthe present invention is to generally improve andv simplify grease cups, and especially the cover portion thereof; to provide a cover which may be readily and quickly opened or closed, and which is rigidly secured when in position without resorting to the use of either interior or exterior threads; a cover which is vertically movable and pivotally mounted with relation to the cup, and which may be opened to any side; a cover which cannot be detached when the cup is in use, thus preventing misplacement, loss or dropping of the cover in the dirt; a cover which is adapted to receive the plunger and which permits complete filling of the cup, and furthermore a cup which positively excludes dust at all times. Other objects will hereinafter appear.

One form which our invention may assume is exemplified in the following description and illustrated in the accompanying dawings, in which- F ig. 1 is a side elevation of the cup showing the cover in closed position.

F ig. 2 is a central, vertical, longitudinal section of the cup.

Fig. 3 is a perspective view of the cup showing the cover in open position.

Referring to the drawings in detail, and particularly to Figs. 1 and 2, A indicates a cylindrical shaped cup open at one end and closed at the opposite end by abottom section 2, which is extended to form a hex,

agonal nut 3 and a threaded nipple extension 4:. The upper inner end of the cup is beveled to form an annular seat 5, and the exterior upper portion of the cup is providedwith an annular stationary ring or flange 6, the function of which will herein- Vafter be described. rlhe cup is otherwise rovided with a cover portion 7 to which is secured a pair ofV downwardly extending arms 8. These arms are connected to a sliding or fioating ring 9, which is vertically slidable and turnably mounted with relation to the cup and the connection between the arms 8 and the ring is formed'by a pair of trunnion like pins 10. The plungerv employed may be of any suitable construction and is generally indicated at 11. The plunger is in this instance carried by a threaded rod 12 and this in turn passes through the cover 7 and terminates in a handle section 18, which isl employed for the purpose of raising or lowering the plunger. The cover is otherwise provided with an annular tapering shoulder 14, which is adapted to engage the annular seat 'when the cover is closed, and it is furthermore provided with an annular downwardly extending flange l5 on the inside of which are formed lugs 16.

A similar set of lugs are formed on the exterior upper end of the grease cup, as indicated at 17, see Figs. 2 and 3, and these lugs terminate in downwardly projecting stop shoulders 18, which areprovided for the purpose of limiting the turning movement of the cover with relation to the cup. The lower faces of the lugs 17 are tapered, as 'at 19, and the upper faces of the lugs 16 are similarly tapered. The spacing between the lugs 17 is such that when the lugs' 16are turned out of engagement with the lugs 17, the cover is free and may be lifted vertically with relation t0 the cup. The interlocking lugs, per se, secure the cover when'in'position and practically any pressure may therefore be exerted on the plunger t0 force the grease out of the cup when inuse without any danger of stripping threads or forcing grease therethrough as is usually the case.

The interior diameter of the cover section conforms withthat of the interior of vthe cup, and the cover extends a sufficient diswhen this is raised to its extreme limit.

yThis is important as it permits the plunger to enter the cover when raised and to bel removed with the cover when the grease cup is to be illed, thus permitting complete filling of the grease cup.

The cup here shown is simple andY substantial in construction and is applied in the usual manner by proper connection with' the threaded nipple extension 4.

When it is desired to fill the cup, it is only necessary to turny the handle 13 and the threaded rod attached thereto until the plunger seats within therecess of the cover.- The cover is then turned to release the lugs 16 with relation to the lugs 17 and when this is accomplished, it is only necessary to lift the cover vertically, the vertical movement permitted being limited by the sliding movement of the ring 19 with relation to the annular ring or flange 6. The cover when raised may be turned and may be opened to any side as it is pivotally attached to the ring as indicated at 10, and when so opened will assume the position shown in Fig. 3. This connection is of great importance as it first of all permits the cover to be opened to any side, and it secondly prevents loss or misplacement of the cover, or any danger of the cover dropping into the dust when the cup is being filled as it cannot be detached with relation to the cup when this is in use. l The stationary flange or ring 16 is another important feature of the invention as it limits upward movement of the cover and the floating ring, and it furthermore cooperates with the cover to form a dust-proof connection, that is the lower face of the annular flange 16 of the cover forms a snug engagement with this ring when the cover is in position, and as it forms a stop which limits upward movement of the floating ring, it also prevents admission of dust when the cover and ring are moved vertically, that is grease cups as their name implies are usually more or less greasy on the outside and as this is the case, it can readily be seen that a considerable quantity of dust will collect on the exterior surfaces. Such dust will be scraped off and carried upwardly on the exterior surface when the ring 9 is lifted, but in this instance further upward movement or transfer of the dust or grease is prevented as it will be stopped by the annular flange or ring 6 and will be deflected in an outward direction, thus preventingthe dust from reaching the upper edge of the cup or from entering the same.

The ring or flange 6 is of further import ance as it prevents 'the collection of dust in the spaces formed between the lugs 17. lf dust were permitted to collect at these points, it could readily be seen that the lugs 16 would crowd `the dust over the upper edge of the cup and that it would drop into the cup and the grease contained therein when the cover is removed, but such collection of dust is prevented in this instance as snug.

engagement is maintained between the cover and the upper surface of the ring 6.

Another important feature is the added grease capacity obtained when filling the cup as the plunger is entirely removed and is retained in the cover when the cup is being filled.

Another important feature is the elimination of either exterior or interior threads as far as the cover is concerned. This is an obvious advantage as it prevents stripping of threads, crossing of thev same, or leaktai-adelaaage of grease through the threads, and it furthermore permits the cover to be readily and quickly opened or closed as a partial turn thereof will either release or secure the cover, while several turns would be required if a threaded connection were employed.

Vilhile certain features of the present invention are more or less specifically illustrated, we wish it understood that various changes in form and proportion may be resorted to within the scope of the appended claims, similarly that the materials and finish of the several parts employed may be such as the experience and judgment of the manufacturer may dictate or various uses may demand.

Having thus described our invention, what we claim and desire to secure by Letters Patent is- 1. A grease cup comprising a cup open at one end and having a discharge opening formed in the opposite end, a cover for the cup, a floating ring vertically movable and turnably mounted on the exterior of the cup,

said ring having a movement substantially from end to end of the cup, a bail rigidly connected to the cover and pivotally connected to the floating ring, said bail permitting tilting of the cover with relation to the cup and the ring, and means for securing the cover to the cup.

2. A grease cup comprising an open ended cup, a cover for the cup, a threaded rod extending through t-he cover and having a plunger secured on its inner end, said cover adapted to receive the plunger when retracted, a pair of bail arms rigidly secured to the cover, a floating ring vertically movable and turnable with relation to the cup, said ring having a vertical movement sunstantially! from end to end of the cup, and a pivotal connection between the bail arms and the ring.

3. in a grease cup of the character described, a. cup and a cover, a ring vertically movable and turnable exterior of the cup, a pair of downwardly extending arms on the cover and exterior of the cup, a pivotal connection between said arms and the ring, an annular flange adjacent the upper end of the cup and on the exterior side thereof limiting upward movement of the ring, an annular seat formed on the lower end of the cover engageable with said flange to form a dustproof connection between the cover and the cup, and means for securing the cover to the cup.

4l. lfn a grease cup of the character described, a. cup and a cover, a ring vertically movable and turnable exterior of the cup, a pair of downwardly extending arms on the cover and exterior of the cup, a pivotal connection between said arms and the ring, an annular Bange adjacent the upper end of the cup and on the exterior side thereof limiting upward movement of the ring, an annular seat formed on the lower end of the cover engageable with said flange to orm a dustpr0of connection between the cover and the cup, means for securing the cover to the cup and to retain the cover in engagement with the annular ange, a plunger carried by the cover and adapted to be received thereby, and means for imparting vertical movement to the plunger with relation to the cup and the cover.

VERLE V. VAN NATTAN. WILLIAM W. DAVS. 

